Slub catcher and yarn cleaner



Nov. 24, 1931.

G. A. METCALF ET AL SLUB GATCHER AND YARN CLEANER Filed Nov. 6 1930 \nvenors.

of George AMeTcuH-,deseused James Dmce @ym mgm Patented Nov. 24, 1931 'UNITED STATES PATENT OFFICE GEORGE A. METCALE, DECEASED, LATE on EEAMINGHAM, MASSACHUSETTS, EY ELLA M. METCALF, ADMINISTEATRIX, or EEAMINGHAM, MASSACHUSETTS, AED `JAMES n. BRUCE, E EEAMINGHAM, MASSACHUSETTS, ASSIGEOES To EEAPEE CORPORA- TIoN, 0E HOBEDALE, MASSACHUSETTS, A CORPORATION 0E MAINE SLUB CATCHER AND YARN' CLEANER Application led November 6, 1930. Serial No. 493,828.

This invention relates to slub catchers and yarn Cleaners such as are employed in connection withospoolers and other textile machines for the cleaning 0H from yarn of slubs, irregularities, imperfections, and foreign matter or, in other words, for` preventedges to the yarn as it passes therethrough.4

The object of the invention is further to providek such a device in which the area of the parallelogram-shaped yarn passage may be varied as found desirable and in accordance with the size of the yarn being handled by adjusting either one side or two adjacent sides of the yarn passage.

The object of the invention is further to provide such a device in which one side wall of the yarn passage is movably, and preferably yieldingly movably, mounted so as to .permit ready threading of the passage.

These and other objects and features of thev invention will appear more fully from the accompanying description and drawings and will be particularly pointed out in the claims.

As the lgeneral nature and use of slubv catchers and yarn cleaners are well known and familiar to those skilled in the art, it is only necessary here to illustrate and describe a preferred form of construction embodyin the present invention and such a preferrec form is shown in the drawings, in which:

Fig. 1 is a rear elevation of the device aS supported on the traverse rod of a Spooler.

Fig. 2 is a front elevation of the construction shown in Fig. 1. Y

Fig. 3 is a side elevation of the same construction. A

Fig. 4 is an enlarged detail view in front elevation showing the parts surrounding the thread passage.

Fig. 5 is a view in cross section taken on the line 5-5 of Fig. 4.

Fig. 6 is a view in cross section taken on Lthe line 6'-6 of Fig. 4. i

Vliile the general cross sectional shape of yarn is circular, it varies substantially therefrom and is frequently more or less flattened. It is desirable, however, that the cross section of yarn should approximate the circular. It.

is diiicult and practically impossible to form a thread passage in a slub catcher and yarn cleaner of circular forni and at the same time provide for adjustment of the area of the passage. In this invention the cross-sectional area of the yarn passage is that of a par.- allelogram and preferably equilateral or square. Thus there is presented to the yarn,

as it passes through the device, four scraping edges and as the yarn twists and turns in its passage through the device any slubs, imperfections, or other foreign'matters are removed or, if these are too large, the yarn is broken. Such a construction acts to maintain the desired Cross section of the yarn and maintain it substantially circular. Such a construction also is .readily adjust-able, inaccordance with this invention, to vary tov any required extent the area of the yarn pas- Ysage preferably by adjusting two adjacent side walls of the passage, although the area maybe varied to the required extent by the adjustment of one side wall. The invention also presents a simple and efhcient provision for threading the yarn passage in that one side wall is movably mounted, and preferably yieldingly movably mounted, so that this side wall may be pushed aside by the yarn and the yarn allowed to enter' the passage.

In the construction illustrated, there is shown the traverse rodl of a yarn handling machine such as a spooler. On this traverse rod is clamped an upstanding bracket 2 and a preferred embodiment of the slub catcher and yarn cleaner is conveniently carried on this bracket.

The device is shown as comprising a main body or support formed of a pair of plates 9 ico Y wall.

down from the top at 9 to present a threading passage.

The thread cleaning passage extends through the plates 3 and l and one side wall is presented by the plates 3 and L of the support. This side wall is shown at- 10 at the left-hand side. rlhe opposite side wall 11 is shown as formed on a wall member or plate 12 mounted in the support for adjustment toward and from the side wall 10. For this purpose the plate 12 is guided by pins 13 and is locked in adjusted position by a set screw 14 extending through an enlarged aperture in the plate into the support. As illustrated, the plate 12 lit-s on the outer surface of the plate 3 and is provided with an end carrying the side wall 11 projecting into a recess in the plate S, but any suitable construction may be provided for this side The third side wall 15 of the yarn passage is shown as formed on a wall member or plate 16 mounted between the plates 3 and 4L and guided toward and from the axis of the passage against the spacer 6 and by a slot therein fitting over a bolt 17. Thus the plate 16 may be moved in or out and held in locked position by the bolt 17 to provide the desired adjustment. rl`he fourth side wall 18 of the yarn passage is formed on a wall member or plate 19 extending between the plates 3 and 4 and pivotally secured thereto by the stud 20. This plate 19 is yieldingly pressed against a stud 21 mounted in the plates 8 and by a spring 22 mounted between these plates and heid in position by a stud 23. Thus it will be seen that by pressing the yarn down in the slot 9, the plate 19 will swing aside and allow the yarn readily to be threaded into the yarn passage.

The cross sectional area et the yarn passage, it will be seen, is a parallelogram and is preferably equilateral, being readily adjusted to any required size by adjusting the plates or wall members 12 and 1G. .Vhile this yarn passage is shown as having a shape of a. rhomb, that will depend upon the angular relation of the plate 16 and the opposed plate 19 and any desired angular relation by which the yarn passage may be square or approximately square is readily obtained.

The plates 12, 1G, and 19 are all readily removable and the side wall 10 of the yarn passage is preferably formed on wear plates 24 inserted in the plates 8 and e so that all four walls ot' the yarn passage may be made of special or specially hardened metal and removed and replaced when wear takes place.

The area of the yarn passage may be adjusted to maintain its equilateral form adjusting both plates 12 and 16 r may be adjusted to give an elongated area by adjusting either one of these plates, 1n all cases, however., there is presented to the yarn 4 oppositel-y disposed scraping edges which act efficiently to clean the yarn and present a passage, the area of which may be adjusted as and to the extent desired.

Having thus described the invention what is claimed as new, and desired to be secured by Letters Patent is:

1. A slub catcher and yarn cleaner having a yarn passage whose cross section is' a parallelogram with one side wall of said passage movable without disturbing the other three side walls to open and close the passage and thus permit threading.

2. A. slub catcher and yarn cleaner having a yarn passage whose ,cross section is a parallelogram with one side Wall on a member yieldingly movable without disturbing the other three side walls to open close theV passage and thus permit threading.

3. A slub catcher and yarn cleaner having a yarn passage whose cross section is a prallelogram and separate means for adjusting each of two adjacent side walls to vai-'y the size of the passage. y

4. A slub catcher and yarn cleaner having a yarn passagev whose cross section is a parallelogram, means for adjusting one side wall without disturbing the other three side walls to vary the area of the passage and with a single one of the said other three side walls yieldingly movable to open and close the passage and thus permit threading;

5. A slub catcher and yarn cleaner having a yarn passage whose cross section is a par'- allelogram and separate means for adjusting each ot two adjacent side walls to vary the sise of the passage and with a single third side wall yieldingly movable to open and close the passage and thus permit threading.

6. A slub catcher and yarn cleaner having a yarn passage whose cross section isa parallelogram and comprising a support presenting one side wall of said passage, a wall member presenting the opposite side wall of said passage adjustableonthe support to-j ward and from the first side wall, a wall member presenting the third side wallA of said passage adjustable on said support toward and from the axis of the passage, and a wall member presenting the fourth side wall. of the passage and movably mounted on the support to permit threading of the passage. j

7. .fislub catcher and yarn cleaner comprising the construction defined in claimt, in which the fourth side wall member is pivotally mounted on the support and yieldingly h'eld in' position and permitting' threading of the passage when swung on its pivot'.

In testimony whereof, we have signed our names to this specification.

ELLA M. METC-ALF,

clma'nstmtrz'm of the Estate of George A.

iso 

